//
//  ESCacheClear.m
//  EasyStyle
//
//  Created by FK on 16/6/4.
//  Copyright © 2016年 FK. All rights reserved.
//

#import "ESCacheClear.h"
#import "SDImageCache.h"
@implementation ESCacheClear

///计算单个文件大小
+(float)fileSizeAtPath:(NSString *)path{
    NSFileManager *fileManager=[NSFileManager defaultManager];
    if([fileManager fileExistsAtPath:path]){
        long long size=[fileManager attributesOfItemAtPath:path error:nil].fileSize;
        return size/1024.0/1024.0;
    }
    return 0;
}

/// 计算目录大小
+(float)folderSizeAtPath:(NSString *)path{
    NSFileManager *fileManager=[NSFileManager defaultManager];
    float folderSize;
    if ([fileManager fileExistsAtPath:path]) {
        NSArray *childerFiles=[fileManager subpathsAtPath:path];
        for (NSString *fileName in childerFiles) {
            NSString *absolutePath=[path stringByAppendingPathComponent:fileName];
            folderSize +=[ESCacheClear fileSizeAtPath:absolutePath];
        }
        //SDWebImage框架自身计算缓存的实现
        folderSize+=[[SDImageCache sharedImageCache] getSize];
        
        return folderSize/1024.0/1024.0;
    }
    return 0;
}

/// 清理缓存文件
+(void)clearCache:(NSString *)path{
    NSFileManager *fileManager=[NSFileManager defaultManager];
    if ([fileManager fileExistsAtPath:path]) {
        NSArray *childerFiles=[fileManager subpathsAtPath:path];
        for (NSString *fileName in childerFiles) {
            //如有需要，加入条件，过滤掉不想删除的文件
            NSString *absolutePath=[path stringByAppendingPathComponent:fileName];
            [fileManager removeItemAtPath:absolutePath error:nil];
        }
    }
    [[SDImageCache sharedImageCache] cleanDisk];
}
@end
